Inter- and intraspecies variability in stable isotope ratio values of archaeological freshwater fish remains from Switzerland (11th–19th centuries AD)

Simone Häberle, Benjamin T. Fuller, Olaf Nehlich, Wim Van Neer, Jörg Schibler and Heide Hüster Plogmann

Environmental Archaeology, 2016, vol. 21, issue 2, 119-132

Abstract: This paper presents carbon and nitrogen isotopic results from several Swiss freshwater fish (Esox lucius, Perca fluviatilis, Barbus barbus, Rutilus rutilus and other Cyprinidae) in order to provide information about their trophic level, feeding habits and provenance.Freshwater fish remains are regularly recovered from archaeological contexts in Switzerland, which attests to the importance of these aquatic food resources to past communities. However, it can be difficult to determine the effect of freshwater fish consumption in human bone isotope signatures by stable isotope ratio analysis. Therefore, an establishment of baseline isotope signatures of freshwater fish by region and time is necessary. Additionally, freshwater fish isotope analysis can serve as a backdrop for research on former aquatic isotopic ecology.We measured carbon and nitrogen isotope ratios of 140 freshwater fish bone samples from sites dating between the 11th and 19th centuries AD. Suitable C:N ratios (2·9–3·6) were obtained from 56 of the samples, a rather low success rate that may be the result of diagenetic contamination and insufficient sample weight (

Date: 2016
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DOI: 10.1179/1749631414Y.0000000042

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